package demo2;

import java.util.Scanner;

public class Test2 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        double bim = 0;
        char ch = in.next().charAt(0);
        double kg = in.nextDouble();
        double m = in.nextDouble();
        bim = kg / ( m * m );
        if (bim < 18.5) {
            System.out.print("苗条");
        } else if (bim >= 18.5 && bim < 20.9) {
            System.out.print("偏瘦");
        } else if (bim >= 20.9 && bim <= 24.9) {
            System.out.print("适中");
        } else {
            System.out.print("偏胖");
        }
    }
}
